{"id":13195,"date":"2024-10-14T08:40:51","date_gmt":"2024-10-14T12:40:51","guid":{"rendered":"https:\/\/www.ogc.org\/?post_type=standards&#038;p=13195"},"modified":"2025-09-12T12:15:00","modified_gmt":"2025-09-12T12:15:00","slug":"cityjson","status":"publish","type":"standards","link":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/standards\/cityjson\/","title":{"rendered":"CityJSON"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-2-xl-font-size\"><strong>CityJSON<\/strong><\/h1>\n<p>This <strong>community<\/strong> standard is a data exchange format for digital 3D models of cities and landscapes.\u00a0The\u00a0<a href=\"https:\/\/json.org\/\" target=\"_blank\" rel=\"nofollow noopener\">JSON<\/a>-based encoding of CityJSON implements a subset of the\u00a0<a href=\"https:\/\/docs.ogc.org\/is\/20-010\/20-010.html\" target=\"_blank\" rel=\"nofollow noopener\">CityGML data model (version 3.0)<\/a>\u00a0and includes a JSON-specific extension mechanism. Using JSON instead of GML allows us to compress files by a factor 6 and at the same time to simplify greatly the structure of the files.<\/p>\n\n\n\n\n\n<section class=\"wp-block-group pattern-single-column is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading has-blue-color has-text-color has-link-color has-2-xl-font-size wp-elements-c81bb6ca8df4a9fb76581a9b45c4fe6b\"><strong>Overview<\/strong><\/h2>\n\n\n\n<p>CityJSON is a data exchange format for digital 3D models of cities and landscapes. It aims at being easy-to-use (for reading, processing, and creating datasets), and it was designed with programmers in mind, so that tools and APIs supporting it can be quickly built. The&nbsp;<a href=\"https:\/\/json.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">JSON<\/a>-based encoding of CityJSON implements a subset of the&nbsp;<a href=\"https:\/\/docs.ogc.org\/is\/20-010\/20-010.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">OGC CityGML data model (version 3.0)<\/a>&nbsp;and includes a JSON-specific extension mechanism. Using JSON instead of GML allows us to compress files by a factor 6 and at the same time to simplify greatly the structure of the files.<\/p>\n<\/div>\n<\/div>\n<\/section>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p><\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CityJSON This community standard is a data exchange format for digital 3D models of cities and landscapes.\u00a0The\u00a0JSON-based encoding of CityJSON implements a subset of the\u00a0CityGML data model (version 3.0)\u00a0and includes a JSON-specific extension mechanism. Using JSON instead of GML allows us to compress files by a factor 6 and at the same time to simplify [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19019,"parent":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","footnotes":""},"standards-tag":[558,559],"class_list":["post-13195","standards","type-standards","status-publish","format-standard","has-post-thumbnail","hentry","standards-tag-citygml","standards-tag-cityjson"],"acf":[],"_links":{"self":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards"}],"about":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/types\/standards"}],"author":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/comments?post=13195"}],"version-history":[{"count":3,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13195\/revisions"}],"predecessor-version":[{"id":19080,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards\/13195\/revisions\/19080"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/media\/19019"}],"wp:attachment":[{"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/media?parent=13195"}],"wp:term":[{"taxonomy":"standards-tag","embeddable":true,"href":"https:\/\/fm-connect1.fortmindz.in\/wp-ogc\/wp-json\/wp\/v2\/standards-tag?post=13195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}